7986381 has 16 divisors (see below), whose sum is σ = 11714304. Its totient is φ = 4809024.

The previous prime is 7986371. The next prime is 7986389. The reversal of 7986381 is 1836897.

It is not a de Polignac number, because 7986381 - 2⁶ = 7986317 is a prime.

It is a super-2 number, since 2×7986381² = 127564562954322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (732144).

Almost surely, 2^7986381 is an apocalyptic number.

It is an amenable number.

7986381 is a deficient number, since it is larger than the sum of its proper divisors (3727923).

7986381 is a wasteful number, since it uses less digits than its factorization.

7986381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420.

The product of its digits is 72576, while the sum is 42.

The square root of 7986381 is about 2826.0185774336. The cubic root of 7986381 is about 199.8864438706.

The spelling of 7986381 in words is "seven million, nine hundred eighty-six thousand, three hundred eighty-one".